[ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... [ OK ] Started Update UTMP about System Runlevel Changes. Starting Load/Save RF Kill Switch Status... [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.10.34' (ECDSA) to the list of known hosts. syzkaller login: [ 33.153029] audit: type=1400 audit(1593859451.662:8): avc: denied { execmem } for pid=6331 comm="syz-executor293" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 33.397709] IPVS: ftp: loaded support on port[0] = 21 executing program [ 34.213254] FAULT_INJECTION: forcing a failure. [ 34.213254] name failslab, interval 1, probability 0, space 0, times 1 [ 34.224793] CPU: 0 PID: 6365 Comm: syz-executor293 Not tainted 4.14.184-syzkaller #0 [ 34.232746] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 34.242088] Call Trace: [ 34.245409] dump_stack+0x1b2/0x283 [ 34.249016] should_fail.cold+0x10a/0x154 [ 34.253143] should_failslab+0xd6/0x130 [ 34.257092] kmem_cache_alloc+0x28e/0x3c0 [ 34.261217] alloc_buffer_head+0x20/0xd0 [ 34.265250] alloc_page_buffers+0xb3/0x1f0 [ 34.269458] __getblk_gfp+0x32c/0x7b0 [ 34.273238] ? filemap_write_and_wait+0x7e/0xa0 [ 34.277895] ? vfat_rename.cold+0x61/0x61 [ 34.282014] ? vfat_rename.cold+0x61/0x61 [ 34.286150] __bread_gfp+0x29/0x1f0 [ 34.289754] fat_fill_super+0x2ef/0x3000 [ 34.293791] ? pointer+0xa00/0xa00 [ 34.297304] ? fat_flush_inodes+0x170/0x170 [ 34.301600] ? lock_downgrade+0x6e0/0x6e0 [ 34.305722] ? snprintf+0xa5/0xd0 [ 34.309150] ? vsprintf+0x30/0x30 [ 34.312589] ? ns_test_super+0x50/0x50 [ 34.316451] ? set_blocksize+0x24b/0x2e0 [ 34.320487] mount_bdev+0x2b3/0x360 [ 34.324088] ? msdos_mount+0x40/0x40 [ 34.327776] mount_fs+0x92/0x2a0 [ 34.333547] vfs_kern_mount.part.0+0x5b/0x3c0 [ 34.338034] do_mount+0x3c9/0x25e0 [ 34.341549] ? copy_mount_string+0x40/0x40 [ 34.345757] ? kmem_cache_alloc_trace+0x389/0x3f0 [ 34.350571] ? copy_mnt_ns+0x8a0/0x8a0 [ 34.354449] ? copy_mount_options+0x1ec/0x2e0 [ 34.358919] ? copy_mnt_ns+0x8a0/0x8a0 [ 34.362778] SyS_mount+0xa8/0x120 [ 34.366222] ? copy_mnt_ns+0x8a0/0x8a0 [ 34.370084] do_syscall_64+0x1d5/0x640 [ 34.373951] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 34.379121] RIP: 0033:0x44dbfa [ 34.382285] RSP: 002b:00007f80bac08ae8 EFLAGS: 00000287 ORIG_RAX: 00000000000000a5 [ 34.389981] RAX: ffffffffffffffda RBX: 00007f80bac08cc0 RCX: 000000000044dbfa [ 34.397240] RDX: 00007f80bac08b30 RSI: 0000000020000100 RDI: 00007f80bac08b50 [ 34.406828] RBP: 0000000000000005 R08: 00007f80bac08b90 R09: 0000000000000005 executing program [ 34.414084] R10: 0000000000000000 R11: 0000000000000287 R12: 00000000006ddc2c [ 34.421335] R13: 00007ffc49fcdeaf R14: 00007f80bac099c0 R15: 0000000000000000 [ 34.439890] FAT-fs (loop5): bogus number of reserved sectors [ 34.446691] FAT-fs (loop5): Can't find a valid FAT filesystem [ 34.525468] FAULT_INJECTION: forcing a failure. [ 34.525468] name fail_page_alloc, interval 1, probability 0, space 0, times 1 [ 34.537545] CPU: 1 PID: 6371 Comm: syz-executor293 Not tainted 4.14.184-syzkaller #0 [ 34.545464] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 34.555417] Call Trace: [ 34.557990] dump_stack+0x1b2/0x283 [ 34.561611] should_fail.cold+0x10a/0x154 [ 34.565750] __alloc_pages_nodemask+0x22b/0x2730 [ 34.570502] ? lock_acquire+0x170/0x3f0 [ 34.574450] ? lock_downgrade+0x6e0/0x6e0 [ 34.578573] ? get_page_from_freelist+0xae8/0x24f0 [ 34.583487] ? gfp_pfmemalloc_allowed+0x150/0x150 [ 34.588301] ? mark_held_locks+0xa6/0xf0 [ 34.592338] ? __lock_acquire+0x655/0x42a0 [ 34.596550] ? kernel_poison_pages+0x1b/0x250 [ 34.601024] cache_grow_begin+0x91/0x410 [ 34.605080] cache_alloc_refill+0x28c/0x360 [ 34.609415] kmem_cache_alloc+0x333/0x3c0 [ 34.613557] radix_tree_node_alloc.constprop.0+0x1b4/0x300 [ 34.619162] __radix_tree_create+0x32b/0x4b0 [ 34.623559] ? check_preemption_disabled+0x35/0x240 [ 34.628555] page_cache_tree_insert+0x98/0x2a0 [ 34.633128] ? file_check_and_advance_wb_err+0x370/0x370 [ 34.638565] ? __add_to_page_cache_locked+0x22a/0x890 [ 34.643776] __add_to_page_cache_locked+0x23a/0x890 [ 34.648771] ? page_cache_tree_insert+0x2a0/0x2a0 [ 34.653590] ? lock_downgrade+0x6e0/0x6e0 [ 34.657753] add_to_page_cache_lru+0xea/0x300 [ 34.662221] ? add_to_page_cache_locked+0x40/0x40 [ 34.667039] ? __page_cache_alloc+0xd7/0x3c0 [ 34.671420] pagecache_get_page+0x2bb/0xa10 [ 34.675730] __getblk_gfp+0x234/0x7b0 [ 34.679508] ? vfat_rename.cold+0x61/0x61 [ 34.683627] ? vfat_rename.cold+0x61/0x61 [ 34.687748] __bread_gfp+0x29/0x1f0 [ 34.691348] fat_fill_super+0x2ef/0x3000 [ 34.695385] ? pointer+0xa00/0xa00 [ 34.698909] ? fat_flush_inodes+0x170/0x170 [ 34.703202] ? lock_downgrade+0x6e0/0x6e0 [ 34.707345] ? snprintf+0xa5/0xd0 [ 34.710784] ? vsprintf+0x30/0x30 [ 34.714212] ? ns_test_super+0x50/0x50 [ 34.718073] ? set_blocksize+0x24b/0x2e0 [ 34.722116] mount_bdev+0x2b3/0x360 [ 34.725733] ? msdos_mount+0x40/0x40 [ 34.729422] mount_fs+0x92/0x2a0 [ 34.732765] vfs_kern_mount.part.0+0x5b/0x3c0 [ 34.737237] do_mount+0x3c9/0x25e0 [ 34.740753] ? copy_mount_string+0x40/0x40 [ 34.744960] ? kmem_cache_alloc_trace+0x389/0x3f0 [ 34.749777] ? copy_mnt_ns+0x8a0/0x8a0 [ 34.753639] ? copy_mount_options+0x1ec/0x2e0 [ 34.758117] ? copy_mnt_ns+0x8a0/0x8a0 [ 34.761981] SyS_mount+0xa8/0x120 [ 34.765407] ? copy_mnt_ns+0x8a0/0x8a0 [ 34.769270] do_syscall_64+0x1d5/0x640 [ 34.773134] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 34.778301] RIP: 0033:0x44dbfa [ 34.781463] RSP: 002b:00007f80bac08ae8 EFLAGS: 00000287 ORIG_RAX: 00000000000000a5 [ 34.789146] RAX: ffffffffffffffda RBX: 00007f80bac08cc0 RCX: 000000000044dbfa [ 34.796403] RDX: 00007f80bac08b30 RSI: 0000000020000100 RDI: 00007f80bac08b50 [ 34.803665] RBP: 0000000000000005 R08: 00007f80bac08b90 R09: 0000000000000005 [ 34.810909] R10: 0000000000000000 R11: 0000000000000287 R12: 00000000006ddc2c [ 34.818154] R13: 00007ffc49fcdeaf R14: 00007f80bac099c0 R15: 0000000000000000 executing program [ 34.836718] FAT-fs (loop5): bogus number of reserved sectors [ 34.842536] FAT-fs (loop5): Can't find a valid FAT filesystem [ 34.889416] FAULT_INJECTION: forcing a failure. [ 34.889416] name failslab, interval 1, probability 0, space 0, times 0 [ 34.903677] CPU: 1 PID: 6376 Comm: syz-executor293 Not tainted 4.14.184-syzkaller #0 [ 34.911577] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 34.921370] Call Trace: [ 34.924083] dump_stack+0x1b2/0x283 [ 34.927737] should_fail.cold+0x10a/0x154 [ 34.931957] should_failslab+0xd6/0x130 [ 34.935919] kmem_cache_alloc+0x28e/0x3c0 [ 34.940048] alloc_buffer_head+0x20/0xd0 [ 34.944114] alloc_page_buffers+0xb3/0x1f0 [ 34.948340] __getblk_gfp+0x32c/0x7b0 [ 34.952220] ? filemap_write_and_wait+0x7e/0xa0 [ 34.956879] ? vfat_rename.cold+0x61/0x61 [ 34.961008] ? vfat_rename.cold+0x61/0x61 [ 34.965137] __bread_gfp+0x29/0x1f0 [ 34.968831] fat_fill_super+0x2ef/0x3000 [ 34.972874] ? pointer+0xa00/0xa00 [ 34.976395] ? fat_flush_inodes+0x170/0x170 [ 34.980702] ? lock_downgrade+0x6e0/0x6e0 [ 34.984826] ? snprintf+0xa5/0xd0 [ 34.988267] ? vsprintf+0x30/0x30 [ 34.991700] ? ns_test_super+0x50/0x50 [ 34.995667] ? set_blocksize+0x24b/0x2e0 [ 34.999797] mount_bdev+0x2b3/0x360 [ 35.003416] ? msdos_mount+0x40/0x40 [ 35.007110] mount_fs+0x92/0x2a0 [ 35.010462] vfs_kern_mount.part.0+0x5b/0x3c0 [ 35.014935] do_mount+0x3c9/0x25e0 [ 35.018452] ? copy_mount_string+0x40/0x40 [ 35.022664] ? kmem_cache_alloc_trace+0x389/0x3f0 [ 35.027490] ? copy_mnt_ns+0x8a0/0x8a0 [ 35.031362] ? copy_mount_options+0x1ec/0x2e0 [ 35.035833] ? copy_mnt_ns+0x8a0/0x8a0 [ 35.039705] SyS_mount+0xa8/0x120 [ 35.043137] ? copy_mnt_ns+0x8a0/0x8a0 [ 35.047037] do_syscall_64+0x1d5/0x640 [ 35.050919] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 35.056095] RIP: 0033:0x44dbfa [ 35.059270] RSP: 002b:00007f80bac08ae8 EFLAGS: 00000287 ORIG_RAX: 00000000000000a5 [ 35.066964] RAX: ffffffffffffffda RBX: 00007f80bac08cc0 RCX: 000000000044dbfa [ 35.074310] RDX: 00007f80bac08b30 RSI: 0000000020000100 RDI: 00007f80bac08b50 [ 35.081568] RBP: 0000000000000005 R08: 00007f80bac08b90 R09: 0000000000000005 [ 35.088823] R10: 0000000000000000 R11: 0000000000000287 R12: 00000000006ddc2c [ 35.096072] R13: 00007ffc49fcdeaf R14: 00007f80bac099c0 R15: 0000000000000000 [ 35.130737] FAT-fs (loop5): bogus number of reserved sectors [ 35.138232] IPVS: ftp: loaded support on port[0] = 21 [ 35.146435] FAT-fs (loop5): Can't find a valid FAT filesystem executing program [ 35.224550] FAULT_INJECTION: forcing a failure. [ 35.224550] name failslab, interval 1, probability 0, space 0, times 0 [ 35.236507] CPU: 0 PID: 6384 Comm: syz-executor293 Not tainted 4.14.184-syzkaller #0 [ 35.244751] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 35.254098] Call Trace: [ 35.256725] dump_stack+0x1b2/0x283 [ 35.260342] should_fail.cold+0x10a/0x154 [ 35.264521] should_failslab+0xd6/0x130 [ 35.268561] kmem_cache_alloc+0x28e/0x3c0 [ 35.272706] alloc_buffer_head+0x20/0xd0 [ 35.276761] alloc_page_buffers+0xb3/0x1f0 [ 35.280979] __getblk_gfp+0x32c/0x7b0 [ 35.285458] ? filemap_write_and_wait+0x7e/0xa0 [ 35.290105] ? vfat_rename.cold+0x61/0x61 [ 35.294230] ? vfat_rename.cold+0x61/0x61 [ 35.298355] __bread_gfp+0x29/0x1f0 [ 35.301969] fat_fill_super+0x2ef/0x3000 [ 35.306012] ? pointer+0xa00/0xa00 [ 35.309545] ? fat_flush_inodes+0x170/0x170 [ 35.313842] ? lock_downgrade+0x6e0/0x6e0 [ 35.317966] ? snprintf+0xa5/0xd0 [ 35.321393] ? vsprintf+0x30/0x30 [ 35.324825] ? ns_test_super+0x50/0x50 [ 35.328688] ? set_blocksize+0x24b/0x2e0 [ 35.332743] mount_bdev+0x2b3/0x360 [ 35.336353] ? msdos_mount+0x40/0x40 [ 35.340134] mount_fs+0x92/0x2a0 [ 35.343485] vfs_kern_mount.part.0+0x5b/0x3c0 [ 35.347958] do_mount+0x3c9/0x25e0 [ 35.351476] ? copy_mount_string+0x40/0x40 [ 35.355688] ? kmem_cache_alloc_trace+0x389/0x3f0 [ 35.360507] ? copy_mnt_ns+0x8a0/0x8a0 [ 35.364373] ? copy_mount_options+0x1ec/0x2e0 [ 35.368846] ? copy_mnt_ns+0x8a0/0x8a0 [ 35.372731] SyS_mount+0xa8/0x120 [ 35.376173] ? copy_mnt_ns+0x8a0/0x8a0 [ 35.380075] do_syscall_64+0x1d5/0x640 [ 35.384001] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 35.389175] RIP: 0033:0x44dbfa [ 35.392561] RSP: 002b:00007f80bac08ae8 EFLAGS: 00000287 ORIG_RAX: 00000000000000a5 [ 35.400247] RAX: ffffffffffffffda RBX: 00007f80bac08cc0 RCX: 000000000044dbfa [ 35.407549] RDX: 00007f80bac08b30 RSI: 0000000020000100 RDI: 00007f80bac08b50 [ 35.414796] RBP: 0000000000000005 R08: 00007f80bac08b90 R09: 0000000000000005 executing program [ 35.422113] R10: 0000000000000000 R11: 0000000000000287 R12: 00000000006ddc2c [ 35.429372] R13: 00007ffc49fcdeaf R14: 00007f80bac099c0 R15: 0000000000000000 [ 35.456275] FAT-fs (loop5): bogus number of reserved sectors [ 35.462114] FAT-fs (loop5): Can't find a valid FAT filesystem [ 35.549558] FAULT_INJECTION: forcing a failure. [ 35.549558] name failslab, interval 1, probability 0, space 0, times 0 [ 35.561011] CPU: 1 PID: 6391 Comm: syz-executor293 Not tainted 4.14.184-syzkaller #0 [ 35.568881] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 35.578362] Call Trace: [ 35.580940] dump_stack+0x1b2/0x283 [ 35.584563] should_fail.cold+0x10a/0x154 [ 35.588722] should_failslab+0xd6/0x130 [ 35.592677] kmem_cache_alloc+0x28e/0x3c0 [ 35.596818] alloc_buffer_head+0x20/0xd0 [ 35.600857] alloc_page_buffers+0xb3/0x1f0 [ 35.605083] __getblk_gfp+0x32c/0x7b0 [ 35.608885] ? filemap_write_and_wait+0x7e/0xa0 [ 35.613541] ? vfat_rename.cold+0x61/0x61 [ 35.617683] ? vfat_rename.cold+0x61/0x61 [ 35.621810] __bread_gfp+0x29/0x1f0 [ 35.625430] fat_fill_super+0x2ef/0x3000 [ 35.629473] ? pointer+0xa00/0xa00 [ 35.632994] ? fat_flush_inodes+0x170/0x170 [ 35.637295] ? lock_downgrade+0x6e0/0x6e0 [ 35.641439] ? snprintf+0xa5/0xd0 [ 35.644872] ? vsprintf+0x30/0x30 [ 35.648333] ? ns_test_super+0x50/0x50 [ 35.652205] ? set_blocksize+0x24b/0x2e0 [ 35.656245] mount_bdev+0x2b3/0x360 [ 35.659938] ? msdos_mount+0x40/0x40 [ 35.663632] mount_fs+0x92/0x2a0 [ 35.666989] vfs_kern_mount.part.0+0x5b/0x3c0 [ 35.671469] do_mount+0x3c9/0x25e0 [ 35.674998] ? copy_mount_string+0x40/0x40 [ 35.679650] ? kmem_cache_alloc_trace+0x389/0x3f0 [ 35.684494] ? copy_mnt_ns+0x8a0/0x8a0 [ 35.688796] ? copy_mount_options+0x1ec/0x2e0 [ 35.694136] ? copy_mnt_ns+0x8a0/0x8a0 [ 35.698016] SyS_mount+0xa8/0x120 [ 35.701483] ? copy_mnt_ns+0x8a0/0x8a0 [ 35.705359] do_syscall_64+0x1d5/0x640 [ 35.709230] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 35.714403] RIP: 0033:0x44dbfa [ 35.717592] RSP: 002b:00007f80bac08ae8 EFLAGS: 00000287 ORIG_RAX: 00000000000000a5 [ 35.725365] RAX: ffffffffffffffda RBX: 00007f80bac08cc0 RCX: 000000000044dbfa [ 35.732613] RDX: 00007f80bac08b30 RSI: 0000000020000100 RDI: 00007f80bac08b50 [ 35.739876] RBP: 0000000000000005 R08: 00007f80bac08b90 R09: 0000000000000005 [ 35.747140] R10: 0000000000000000 R11: 0000000000000287 R12: 00000000006ddc2c [ 35.754392] R13: 00007ffc49fcdeaf R14: 00007f80bac099c0 R15: 0000000000000000 [ 35.781589] FAT-fs (loop5): bogus number of reserved sectors [ 35.787580] FAT-fs (loop5): Can't find a valid FAT filesystem executing program [ 35.870115] FAULT_INJECTION: forcing a failure. [ 35.870115] name failslab, interval 1, probability 0, space 0, times 0 [ 35.881429] CPU: 1 PID: 6401 Comm: syz-executor293 Not tainted 4.14.184-syzkaller #0 [ 35.889479] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 35.898820] Call Trace: [ 35.901399] dump_stack+0x1b2/0x283 [ 35.905021] should_fail.cold+0x10a/0x154 [ 35.909164] should_failslab+0xd6/0x130 [ 35.913212] kmem_cache_alloc+0x28e/0x3c0 [ 35.917359] alloc_buffer_head+0x20/0xd0 [ 35.921406] alloc_page_buffers+0xb3/0x1f0 [ 35.925638] __getblk_gfp+0x32c/0x7b0 [ 35.929455] ? filemap_write_and_wait+0x7e/0xa0 [ 35.934285] ? vfat_rename.cold+0x61/0x61 [ 35.938416] ? vfat_rename.cold+0x61/0x61 [ 35.942623] __bread_gfp+0x29/0x1f0 [ 35.946262] fat_fill_super+0x2ef/0x3000 [ 35.950334] ? pointer+0xa00/0xa00 [ 35.953858] ? fat_flush_inodes+0x170/0x170 [ 35.958214] ? lock_downgrade+0x6e0/0x6e0 [ 35.962387] ? snprintf+0xa5/0xd0 [ 35.965822] ? vsprintf+0x30/0x30 [ 35.969263] ? ns_test_super+0x50/0x50 [ 35.973131] ? set_blocksize+0x24b/0x2e0 [ 35.977173] mount_bdev+0x2b3/0x360 [ 35.980774] ? msdos_mount+0x40/0x40 [ 35.984469] mount_fs+0x92/0x2a0 [ 35.987814] vfs_kern_mount.part.0+0x5b/0x3c0 [ 35.992327] do_mount+0x3c9/0x25e0 [ 35.995846] ? copy_mount_string+0x40/0x40 [ 36.000075] ? kmem_cache_alloc_trace+0x389/0x3f0 [ 36.004893] ? copy_mnt_ns+0x8a0/0x8a0 [ 36.008759] ? copy_mount_options+0x1ec/0x2e0 [ 36.013230] ? copy_mnt_ns+0x8a0/0x8a0 [ 36.017096] SyS_mount+0xa8/0x120 [ 36.020525] ? copy_mnt_ns+0x8a0/0x8a0 [ 36.024408] do_syscall_64+0x1d5/0x640 [ 36.028798] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 36.033965] RIP: 0033:0x44dbfa [ 36.037162] RSP: 002b:00007f80bac08ae8 EFLAGS: 00000287 ORIG_RAX: 00000000000000a5 [ 36.044846] RAX: ffffffffffffffda RBX: 00007f80bac08cc0 RCX: 000000000044dbfa [ 36.052092] RDX: 00007f80bac08b30 RSI: 0000000020000100 RDI: 00007f80bac08b50 [ 36.059444] RBP: 0000000000000005 R08: 00007f80bac08b90 R09: 0000000000000005 executing program [ 36.066780] R10: 0000000000000000 R11: 0000000000000287 R12: 00000000006ddc2c [ 36.074040] R13: 00007ffc49fcdeaf R14: 00007f80bac099c0 R15: 0000000000000000 [ 36.100479] FAT-fs (loop5): bogus number of reserved sectors [ 36.106592] FAT-fs (loop5): Can't find a valid FAT filesystem [ 36.149405] FAULT_INJECTION: forcing a failure. [ 36.149405] name failslab, interval 1, probability 0, space 0, times 0 [ 36.161329] CPU: 1 PID: 6407 Comm: syz-executor293 Not tainted 4.14.184-syzkaller #0 [ 36.169330] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 36.178670] Call Trace: [ 36.181243] dump_stack+0x1b2/0x283 [ 36.184861] should_fail.cold+0x10a/0x154 [ 36.188995] should_failslab+0xd6/0x130 [ 36.193986] kmem_cache_alloc+0x28e/0x3c0 [ 36.198128] alloc_buffer_head+0x20/0xd0 [ 36.202169] alloc_page_buffers+0xb3/0x1f0 [ 36.206403] __getblk_gfp+0x32c/0x7b0 [ 36.211396] ? filemap_write_and_wait+0x7e/0xa0 [ 36.216129] ? vfat_rename.cold+0x61/0x61 [ 36.220259] ? vfat_rename.cold+0x61/0x61 [ 36.224415] __bread_gfp+0x29/0x1f0 [ 36.229073] fat_fill_super+0x2ef/0x3000 [ 36.233113] ? pointer+0xa00/0xa00 [ 36.236648] ? fat_flush_inodes+0x170/0x170 [ 36.240954] ? lock_downgrade+0x6e0/0x6e0 [ 36.245090] ? snprintf+0xa5/0xd0 [ 36.248523] ? vsprintf+0x30/0x30 [ 36.251965] ? ns_test_super+0x50/0x50 [ 36.255829] ? set_blocksize+0x24b/0x2e0 [ 36.260673] mount_bdev+0x2b3/0x360 [ 36.264283] ? msdos_mount+0x40/0x40 [ 36.268692] mount_fs+0x92/0x2a0 [ 36.272038] vfs_kern_mount.part.0+0x5b/0x3c0 [ 36.276525] do_mount+0x3c9/0x25e0 [ 36.280068] ? copy_mount_string+0x40/0x40 [ 36.284288] ? kmem_cache_alloc_trace+0x389/0x3f0 [ 36.289122] ? copy_mnt_ns+0x8a0/0x8a0 [ 36.293006] ? copy_mount_options+0x1ec/0x2e0 [ 36.297582] ? copy_mnt_ns+0x8a0/0x8a0 [ 36.301445] SyS_mount+0xa8/0x120 [ 36.304875] ? copy_mnt_ns+0x8a0/0x8a0 [ 36.308749] do_syscall_64+0x1d5/0x640 [ 36.312614] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 36.317782] RIP: 0033:0x44dbfa [ 36.320946] RSP: 002b:00007f80bac08ae8 EFLAGS: 00000287 ORIG_RAX: 00000000000000a5 [ 36.328644] RAX: ffffffffffffffda RBX: 00007f80bac08cc0 RCX: 000000000044dbfa [ 36.336767] RDX: 00007f80bac08b30 RSI: 0000000020000100 RDI: 00007f80bac08b50 [ 36.344043] RBP: 0000000000000005 R08: 00007f80bac08b90 R09: 0000000000000005 [ 36.351293] R10: 0000000000000000 R11: 0000000000000287 R12: 00000000006ddc2c [ 36.358554] R13: 00007ffc49fcdeaf R14: 00007f80bac099c0 R15: 0000000000000000 [ 36.382333] FAT-fs (loop5): bogus number of reserved sectors [ 36.388796] FAT-fs (loop5): Can't find a valid FAT filesystem executing program [ 36.448363] FAULT_INJECTION: forcing a failure. [ 36.448363] name failslab, interval 1, probability 0, space 0, times 0 [ 36.459953] CPU: 1 PID: 6414 Comm: syz-executor293 Not tainted 4.14.184-syzkaller #0 [ 36.467829] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 36.477376] Call Trace: [ 36.480562] dump_stack+0x1b2/0x283 [ 36.484175] should_fail.cold+0x10a/0x154 [ 36.488406] should_failslab+0xd6/0x130 [ 36.492360] kmem_cache_alloc+0x28e/0x3c0 [ 36.496590] alloc_buffer_head+0x20/0xd0 [ 36.500627] alloc_page_buffers+0xb3/0x1f0 [ 36.504842] __getblk_gfp+0x32c/0x7b0 [ 36.508641] ? filemap_write_and_wait+0x7e/0xa0 [ 36.513322] ? vfat_rename.cold+0x61/0x61 [ 36.517453] ? vfat_rename.cold+0x61/0x61 [ 36.521597] __bread_gfp+0x29/0x1f0 [ 36.525227] fat_fill_super+0x2ef/0x3000 [ 36.529618] ? pointer+0xa00/0xa00 [ 36.533140] ? fat_flush_inodes+0x170/0x170 [ 36.537454] ? lock_downgrade+0x6e0/0x6e0 [ 36.541587] ? snprintf+0xa5/0xd0 [ 36.545017] ? vsprintf+0x30/0x30 [ 36.548446] ? ns_test_super+0x50/0x50 [ 36.552310] ? set_blocksize+0x24b/0x2e0 [ 36.556361] mount_bdev+0x2b3/0x360 [ 36.559963] ? msdos_mount+0x40/0x40 [ 36.563656] mount_fs+0x92/0x2a0 [ 36.567001] vfs_kern_mount.part.0+0x5b/0x3c0 [ 36.571473] do_mount+0x3c9/0x25e0 [ 36.575004] ? copy_mount_string+0x40/0x40 [ 36.579215] ? kmem_cache_alloc_trace+0x389/0x3f0 [ 36.584032] ? copy_mnt_ns+0x8a0/0x8a0 [ 36.587899] ? copy_mount_options+0x1ec/0x2e0 [ 36.592369] ? copy_mnt_ns+0x8a0/0x8a0 [ 36.596230] SyS_mount+0xa8/0x120 [ 36.599675] ? copy_mnt_ns+0x8a0/0x8a0 [ 36.603540] do_syscall_64+0x1d5/0x640 [ 36.607407] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 36.612572] RIP: 0033:0x44dbfa [ 36.615749] RSP: 002b:00007f80bac08ae8 EFLAGS: 00000287 ORIG_RAX: 00000000000000a5 [ 36.623431] RAX: ffffffffffffffda RBX: 00007f80bac08cc0 RCX: 000000000044dbfa [ 36.630680] RDX: 00007f80bac08b30 RSI: 0000000020000100 RDI: 00007f80bac08b50 [ 36.637949] RBP: 0000000000000005 R08: 00007f80bac08b90 R09: 0000000000000005 [ 36.645287] R10: 0000000000000000 R11: 0000000000000287 R12: 00000000006ddc2c [ 36.652532] R13: 00007ffc49fcdeaf R14: 00007f80bac099c0 R15: 0000000000000000 [ 36.672978] FAT-fs (loop5): bogus number of reserved sectors [ 36.680127] FAT-fs (loop5): Can't find a valid FAT filesystem executing program [ 36.731194] FAULT_INJECTION: forcing a failure. [ 36.731194] name failslab, interval 1, probability 0, space 0, times 0 [ 36.742802] CPU: 1 PID: 6420 Comm: syz-executor293 Not tainted 4.14.184-syzkaller #0 [ 36.750775] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 36.760194] Call Trace: [ 36.762761] dump_stack+0x1b2/0x283 [ 36.766369] should_fail.cold+0x10a/0x154 [ 36.770496] should_failslab+0xd6/0x130 [ 36.774445] kmem_cache_alloc+0x28e/0x3c0 [ 36.779104] alloc_buffer_head+0x20/0xd0 [ 36.783139] alloc_page_buffers+0xb3/0x1f0 [ 36.787348] __getblk_gfp+0x32c/0x7b0 [ 36.791123] ? filemap_write_and_wait+0x7e/0xa0 [ 36.795770] ? vfat_rename.cold+0x61/0x61 [ 36.799905] ? vfat_rename.cold+0x61/0x61 [ 36.804026] __bread_gfp+0x29/0x1f0 [ 36.807630] fat_fill_super+0x2ef/0x3000 [ 36.811668] ? pointer+0xa00/0xa00 [ 36.815181] ? fat_flush_inodes+0x170/0x170 [ 36.819477] ? lock_downgrade+0x6e0/0x6e0 [ 36.823607] ? snprintf+0xa5/0xd0 [ 36.827205] ? vsprintf+0x30/0x30 [ 36.830633] ? ns_test_super+0x50/0x50 [ 36.834494] ? set_blocksize+0x24b/0x2e0 [ 36.838540] mount_bdev+0x2b3/0x360 [ 36.842158] ? msdos_mount+0x40/0x40 [ 36.845846] mount_fs+0x92/0x2a0 [ 36.849195] vfs_kern_mount.part.0+0x5b/0x3c0 [ 36.853679] do_mount+0x3c9/0x25e0 [ 36.857196] ? copy_mount_string+0x40/0x40 [ 36.861404] ? kmem_cache_alloc_trace+0x389/0x3f0 [ 36.866219] ? copy_mnt_ns+0x8a0/0x8a0 [ 36.870079] ? copy_mount_options+0x1ec/0x2e0 [ 36.874553] ? copy_mnt_ns+0x8a0/0x8a0 [ 36.878414] SyS_mount+0xa8/0x120 [ 36.881857] ? copy_mnt_ns+0x8a0/0x8a0 [ 36.885722] do_syscall_64+0x1d5/0x640 [ 36.889602] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 36.894766] RIP: 0033:0x44dbfa [ 36.897927] RSP: 002b:00007f80bac08ae8 EFLAGS: 00000287 ORIG_RAX: 00000000000000a5 [ 36.905608] RAX: ffffffffffffffda RBX: 00007f80bac08cc0 RCX: 000000000044dbfa [ 36.912865] RDX: 00007f80bac08b30 RSI: 0000000020000100 RDI: 00007f80bac08b50 [ 36.920110] RBP: 0000000000000005 R08: 00007f80bac08b90 R09: 0000000000000005 executing program executing program [ 36.927359] R10: 0000000000000000 R11: 0000000000000287 R12: 00000000006ddc2c [ 36.934604] R13: 00007ffc49fcdeaf R14: 00007f80bac099c0 R15: 0000000000000000 [ 36.958506] FAT-fs (loop5): bogus number of reserved sectors [ 36.965388] FAT-fs (loop5): Can't find a valid FAT filesystem [ 37.014672] FAULT_INJECTION: forcing a failure. [ 37.014672] name failslab, interval 1, probability 0, space 0, times 0 [ 37.027720] FAULT_INJECTION: forcing a failure. [ 37.027720] name failslab, interval 1, probability 0, space 0, times 0 [ 37.040024] CPU: 0 PID: 6425 Comm: syz-executor293 Not tainted 4.14.184-syzkaller #0 [ 37.048019] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 37.057553] Call Trace: [ 37.060127] dump_stack+0x1b2/0x283 [ 37.063737] should_fail.cold+0x10a/0x154 [ 37.067866] should_failslab+0xd6/0x130 [ 37.071824] kmem_cache_alloc+0x28e/0x3c0 [ 37.075950] alloc_buffer_head+0x20/0xd0 [ 37.079986] alloc_page_buffers+0xb3/0x1f0 [ 37.084199] __getblk_gfp+0x32c/0x7b0 [ 37.087987] ? filemap_write_and_wait+0x7e/0xa0 [ 37.092634] ? vfat_rename.cold+0x61/0x61 [ 37.096758] ? vfat_rename.cold+0x61/0x61 [ 37.100884] __bread_gfp+0x29/0x1f0 [ 37.104488] fat_fill_super+0x2ef/0x3000 [ 37.108528] ? pointer+0xa00/0xa00 [ 37.112044] ? fat_flush_inodes+0x170/0x170 [ 37.116340] ? lock_downgrade+0x6e0/0x6e0 [ 37.120475] ? snprintf+0xa5/0xd0 [ 37.123906] ? vsprintf+0x30/0x30 [ 37.127356] ? ns_test_super+0x50/0x50 [ 37.131223] ? set_blocksize+0x24b/0x2e0 [ 37.135264] mount_bdev+0x2b3/0x360 [ 37.138869] ? msdos_mount+0x40/0x40 [ 37.142560] mount_fs+0x92/0x2a0 [ 37.145906] vfs_kern_mount.part.0+0x5b/0x3c0 [ 37.150379] do_mount+0x3c9/0x25e0 [ 37.153899] ? copy_mount_string+0x40/0x40 [ 37.158111] ? kmem_cache_alloc_trace+0x389/0x3f0 [ 37.162929] ? copy_mnt_ns+0x8a0/0x8a0 [ 37.166794] ? copy_mount_options+0x1ec/0x2e0 [ 37.171267] ? copy_mnt_ns+0x8a0/0x8a0 [ 37.175133] SyS_mount+0xa8/0x120 [ 37.178577] ? copy_mnt_ns+0x8a0/0x8a0 [ 37.182444] do_syscall_64+0x1d5/0x640 [ 37.186311] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 37.191476] RIP: 0033:0x44dbfa [ 37.194654] RSP: 002b:00007f80bac08ae8 EFLAGS: 00000287 ORIG_RAX: 00000000000000a5 [ 37.202350] RAX: ffffffffffffffda RBX: 00007f80bac08cc0 RCX: 000000000044dbfa [ 37.209616] RDX: 00007f80bac08b30 RSI: 0000000020000100 RDI: 00007f80bac08b50 [ 37.216862] RBP: 0000000000000005 R08: 00007f80bac08b90 R09: 0000000000000005 [ 37.224107] R10: 0000000000000000 R11: 0000000000000287 R12: 00000000006ddc2c [ 37.231364] R13: 00007ffc49fcdeaf R14: 00007f80bac099c0 R15: 0000000000000000 [ 37.238648] CPU: 1 PID: 6447 Comm: syz-executor293 Not tainted 4.14.184-syzkaller #0 [ 37.243578] FAT-fs (loop5): bogus number of reserved sectors [ 37.246523] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 37.246529] Call Trace: [ 37.246544] dump_stack+0x1b2/0x283 [ 37.246557] should_fail.cold+0x10a/0x154 [ 37.246570] should_failslab+0xd6/0x130 [ 37.246578] __kmalloc+0x2c1/0x400 [ 37.246588] ? register_shrinker+0x1ab/0x220 [ 37.252437] FAT-fs (loop5): Can't find a valid FAT filesystem [ 37.261724] register_shrinker+0x1ab/0x220 [ 37.261735] sget_userns+0x9c5/0xc30 [ 37.261742] ? set_bdev_super+0x110/0x110 [ 37.261752] ? ns_test_super+0x50/0x50 [ 37.261760] ? set_bdev_super+0x110/0x110 [ 37.261766] ? ns_test_super+0x50/0x50 [ 37.261773] sget+0xd1/0x110 [ 37.261782] mount_bdev+0xcd/0x360 [ 37.261789] ? msdos_mount+0x40/0x40 [ 37.261799] mount_fs+0x92/0x2a0 [ 37.327302] vfs_kern_mount.part.0+0x5b/0x3c0 [ 37.331776] do_mount+0x3c9/0x25e0 [ 37.335294] ? copy_mount_string+0x40/0x40 [ 37.339555] ? kmem_cache_alloc_trace+0x389/0x3f0 [ 37.344372] ? copy_mnt_ns+0x8a0/0x8a0 [ 37.348236] ? copy_mount_options+0x1ec/0x2e0 [ 37.352703] ? copy_mnt_ns+0x8a0/0x8a0 [ 37.356569] SyS_mount+0xa8/0x120 [ 37.359998] ? copy_mnt_ns+0x8a0/0x8a0 [ 37.363869] do_syscall_64+0x1d5/0x640 [ 37.367737] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 37.372901] RIP: 0033:0x44dbfa [ 37.376066] RSP: 002b:00007f80bac08ae8 EFLAGS: 00000287 ORIG_RAX: 00000000000000a5 [ 37.383754] RAX: ffffffffffffffda RBX: 00007f80bac08cc0 RCX: 000000000044dbfa [ 37.391008] RDX: 00007f80bac08b30 RSI: 0000000020000100 RDI: 00007f80bac08b50 [ 37.398255] RBP: 0000000000000005 R08: 00007f80bac08b90 R09: 0000000000000005 [ 37.405516] R10: 0000000000000000 R11: 0000000000000287 R12: 00000000006ddc2c [ 37.412760] R13: 00007ffc49fcdeaf R14: 00007f80bac099c0 R15: 0000000000000000 [ 37.421711] ------------[ cut here ]------------ [ 37.426640] WARNING: CPU: 1 PID: 6447 at fs/super.c:1163 kill_block_super+0xbe/0xe0 [ 37.434452] Kernel panic - not syncing: panic_on_warn set ... [ 37.434452] [ 37.441813] CPU: 1 PID: 6447 Comm: syz-executor293 Not tainted 4.14.184-syzkaller #0 [ 37.449682] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 37.459023] Call Trace: [ 37.461592] dump_stack+0x1b2/0x283 [ 37.465209] panic+0x1f9/0x42d [ 37.468435] ? add_taint.cold+0x16/0x16 [ 37.472392] ? kill_block_super+0xbe/0xe0 [ 37.476525] ? kill_block_super+0xbe/0xe0 [ 37.480650] __warn.cold+0x2f/0x30 [ 37.484168] ? ist_end_non_atomic+0x10/0x10 [ 37.488479] ? kill_block_super+0xbe/0xe0 [ 37.492609] report_bug+0x20a/0x248 [ 37.496221] do_error_trap+0x195/0x2d0 [ 37.500086] ? math_error+0x2d0/0x2d0 [ 37.503863] ? __filemap_fdatawait_range+0x260/0x2f0 [ 37.508942] ? retint_kernel+0x2d/0x2d [ 37.512812] ? wait_on_page_bit+0x320/0x320 [ 37.517111] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 37.521931] invalid_op+0x1b/0x40 [ 37.525381] RIP: 0010:kill_block_super+0xbe/0xe0 [ 37.530111] RSP: 0018:ffff888090b77c08 EFLAGS: 00010297 [ 37.535449] RAX: ffff888094044240 RBX: 0000000000000000 RCX: 1ffff1101216ef5c [ 37.542698] RDX: 0000000000000000 RSI: 0000000000000002 RDI: ffff8880a6ebc4e8 [ 37.549945] RBP: ffff888093702000 R08: 0000000000000001 R09: 0000000000000001 [ 37.557192] R10: ffff888094044af0 R11: ffff888094044240 R12: ffff8880a6ebc140 [ 37.564532] R13: ffff888093702140 R14: dffffc0000000000 R15: ffffffff87b534c0 [ 37.571800] ? kill_block_super+0xbe/0xe0 [ 37.575930] deactivate_locked_super+0x6c/0xd0 [ 37.580496] sget_userns+0x9df/0xc30 [ 37.584190] ? set_bdev_super+0x110/0x110 [ 37.588317] ? ns_test_super+0x50/0x50 [ 37.592185] ? set_bdev_super+0x110/0x110 [ 37.596339] ? ns_test_super+0x50/0x50 [ 37.600205] sget+0xd1/0x110 [ 37.603313] mount_bdev+0xcd/0x360 [ 37.606830] ? msdos_mount+0x40/0x40 [ 37.610533] mount_fs+0x92/0x2a0 [ 37.613885] vfs_kern_mount.part.0+0x5b/0x3c0 [ 37.618449] do_mount+0x3c9/0x25e0 [ 37.621969] ? copy_mount_string+0x40/0x40 [ 37.626204] ? kmem_cache_alloc_trace+0x389/0x3f0 [ 37.631131] ? copy_mnt_ns+0x8a0/0x8a0 [ 37.635006] ? copy_mount_options+0x1ec/0x2e0 [ 37.639480] ? copy_mnt_ns+0x8a0/0x8a0 [ 37.643355] SyS_mount+0xa8/0x120 [ 37.646791] ? copy_mnt_ns+0x8a0/0x8a0 [ 37.650660] do_syscall_64+0x1d5/0x640 [ 37.654573] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 37.661288] RIP: 0033:0x44dbfa [ 37.664454] RSP: 002b:00007f80bac08ae8 EFLAGS: 00000287 ORIG_RAX: 00000000000000a5 [ 37.672234] RAX: ffffffffffffffda RBX: 00007f80bac08cc0 RCX: 000000000044dbfa [ 37.679485] RDX: 00007f80bac08b30 RSI: 0000000020000100 RDI: 00007f80bac08b50 [ 37.686732] RBP: 0000000000000005 R08: 00007f80bac08b90 R09: 0000000000000005 [ 37.694088] R10: 0000000000000000 R11: 0000000000000287 R12: 00000000006ddc2c [ 37.701356] R13: 00007ffc49fcdeaf R14: 00007f80bac099c0 R15: 0000000000000000 [ 37.710166] Kernel Offset: disabled [ 37.713849] Rebooting in 86400 seconds..